From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754221AbcKRNE3 (ORCPT ); Fri, 18 Nov 2016 08:04:29 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:54819 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754134AbcKRNEV (ORCPT ); Fri, 18 Nov 2016 08:04:21 -0500 From: Christoph Hellwig To: akpm@linux-foundation.org Cc: aryabinin@virtuozzo.com, joelaf@google.com, jszhang@marvell.com, chris@chris-wilson.co.uk, joaodias@google.com, linux-mm@kvack.org, linux-rt-users@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 05/10] kernel/fork: use vfree_atomic() to free thread stack Date: Fri, 18 Nov 2016 14:03:51 +0100 Message-Id: <1479474236-4139-6-git-send-email-hch@lst.de> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1479474236-4139-1-git-send-email-hch@lst.de> References: <1479474236-4139-1-git-send-email-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrey Ryabinin vfree() is going to use sleeping lock. Thread stack freed in atomic context, therefore we must use vfree_atomic() here. Signed-off-by: Andrey Ryabinin --- kernel/fork.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/fork.c b/kernel/fork.c index 997ac1d..cfee5ec 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -229,7 +229,7 @@ static inline void free_thread_stack(struct task_struct *tsk) } local_irq_restore(flags); - vfree(tsk->stack); + vfree_atomic(tsk->stack); return; } #endif -- 2.1.4